[daip] Bad handling of multiple spacecraft?

[Vivek Dhawan]

I forwarded your email to John since he may know most about how the
OB table gets into FITS.


On Fri, May 9, 2008 9:58 am, Walter Brisken wrote:
|
| In our recent salvo of spacecraft tracking tests, two different spacecraft
| were observed in the same observation, yielding FITS files containing
| spacecraft orbit tables containing two spacecraft.  In the particular
| case, the table entries for the two spacecraft have identical time tags
| (not sure if this is relevant to the problem or not).  In AIPS, only 1 of
| the spacecraft appears in the table.  PRTAB does not indicate which
| spacecraft it is, but it is clear from the X,Y,Z values that only one
| spacecraft is present.  There is concern that some of the subtle
| corrections made by UVFIX, CLCOR, or other??? programs may not be doing
| the right thing as a result.  We are not exactly sure which AIPS tasks
| access the table.
|
| A FITS file is available : /home/swc/difx/projects/ts022b/TS022B.FITS
|
| Please keep Vivek and Ed in the responses to this.  Thanks,
|
| Walter
|